<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>

    <div id="app">{{message}} {{message + message}}</div>

    <div id="app-2">
        <span v-bind:title="message">
            鼠标悬停几秒钟查看此处动态绑定的提示信息！
        </span>
    </div>

    <div id="app-3">
        <p v-if="seen">现在看到我了哦</p>
    </div>

    <div id="app-4">
        <ol>
            <li v-for="todo in todos">
                {{ todo.text }}
            </li>
        </ol>
    </div>

    <div id="app-5">
        <p>{{ message }}</p>
        <button v-on:click="reverseMessage">反转消息</button>
    </div>

    <div id="app-6">
        <p>{{ message }}</p>
        <input v-model="message">
    </div>

    <script>
        var vm = new Vue({
            el: '#app',
            data: {
                message: 'Hello Vue!'
            }
        })

        var app2 = new Vue({
            el: '#app-2',
            data: {
                message: '页面加载于 ' + new Date().toLocaleString()
            }
        })

        var app3 = new Vue({
            el: '#app-3',
            data: {
                seen: true
            }
        })

        var app4 = new Vue({
            el: '#app-4',
            data: {
                todos: [{
                        text: '学习 JavaScript'
                    },
                    {
                        text: '学习 Vue'
                    },
                    {
                        text: '整个牛项目'
                    }
                ]
            }
        })

        var app5 = new Vue({
            el: '#app-5',
            data: {
                message: 'Hello Vue.js!'
            },
            methods: {
                reverseMessage: function () {
                    this.message = this.message.split('').reverse().join('')
                }
            }
        })

        var app6 = new Vue({
            el: '#app-6',
            data: {
                message: 'Hello Vue!'
            }
        })
    </script>

</body>

</html>